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Bit 2112: System Analysis And Design Question Paper

Bit 2112: System Analysis And Design

Course:Bachelor Of Science In Information Technology

Institution: Multimedia University Of Kenya question papers

Exam Year:2012

MULTIMEDIA UNIVERSITY OF KENYA
University Examinations 2012/2013
FIRST YEAR SEMESTER II EXAMINATION
FOR THE DEGREE OF BACHELOR OF SCIENCE IN INFORMATION TECHNOLOGY
BIT 2112: SYSTEM ANALYSIS AND DESIGN
DATE: TIME: 2 HRS
Instructions: Answer Question 1 and Any Other Two.

Question 1 (30 Marks)
a) Prototyping is useful during the analysis and design phases if users are involved in the [3] evolution of the prototype. There are however some disadvantages to prototyping.
Describe three disadvantages or risks. [6 marks]
b) Discuss five roles and responsibilities in system development process. [4 marks]
c) Describe Spiral system development methodology. [4 marks]
d) Explain current technology drivers that influence information systems development.
[6 marks]
e) After you have identified some of the requirements for a system, you need to check that your understanding is correct. Describe two ways in which you could do this.[4 marks]
f) Explain three levels of system testing. [6 marks]

Question 2 (20 Marks)

a) Explain the difference between verification and validation. Give an example of a technique that can be used for each. [4 marks]
b) Specification documents often fail to describe the requirements clearly enough for the various people who need to read them. Describe five different types of mistakes made when documenting requirements.[5 marks]
c) What are the three key parameters you would use as a system analyst to assess an IS project results and experiences. [3 marks]
d) Different stakeholders have different perspectives or views of an information system. Describe:
i. system owners and users perspective [4 marks]
ii. system designers and builders perspective [4 marks]

Question 3 (20 Marks)

a) Feasibility study, done to evaluate the viability of IS project, is never over. Explain this statement. [4 marks]
b) Decision analysis phase in system analysis process identifies the target or best system solution from a set of possible candidate solutions. Explain the 4 criteria used to assess the viability of different candidate solutions. [8 marks]
c) Explain three reasons why an organization may opt to purchase a system from vendors rather than build in-house. [6 marks]
d) What is requirement management and why is it necessary. [2 marks]

Use the following Case Study to answer Question 4 and Question 5.
Case Study
Noida Public Library is the biggest library in Noida. Currently it has about 300 members. A person who is 18 or above can become a member. There is a membership fee of Rs 400 for a year. There is a form to be filled in which person fills personal details. These forms are kept in store for maintaining members’ records and knowing the membership period.
A member can issue a maximum of three books. He/she has three cards to issue books. Against each card a member can issue one book from library. Whenever a member wishes to issue a book and there are spare cards, then the book is issued. Otherwise that request is not entertained. Each book is to be returned on the specified due date. If a member fails to return a book on the specified date, a fine of Rs 2 per day after the due return date is charged. If in case a card gets lost then a duplicate card is issued. Accounts are maintained for the membership fees and money collected from the fines. There are two librarians for books return and issue transaction. Approximately 100 members come to library daily to issue and return books.
There are 5000 books available out of which 1000 books are for reference and can not be issued. Records for the books in the library are maintained. These records contain details about the publisher, author, subject, language, etc. There are suppliers that supply books to the library. Library maintains records of these suppliers.
Many reports are also produced. These reports are for details of the books available in the library, financial details, members’ details, and supplier’s details.
Currently all functions of the library are done manually. Even the records are maintained on papers. Now day by day members are increasing. Maintaining manual records is becoming difficult task. There are other problems also that the library staff is facing. Like in case of issue of duplicate cards to a member when member or library staff loses the card. It is very difficult to check the genuinity of the problem.
Sometimes the library staff needs to know about the status of a book as to whether it is issued or not. So to perform this kind of search is very difficult in a manual system.
Also management requires reports for books issued, books in the library, members, and accounts. Manually producing the reports is a cumbersome job when there are hundreds and thousands of records.
Management plans to expand the library, in terms of books, number of members and finally the revenue generated. It is observed that every month there are at least 50-100 requests for membership. For the last two months the library has not entertained requests for the new membership as it was difficult to manage the existing 250 members manually. With the expansion plans, the management of the library aims to increase its members at the rate of 75 per month. It also plans to increase the membership fees from 400 to 1000 for yearly and 500 for half year, in order to provide its members better services, which includes increase in number of books from 3 to 4.
Due to the problems faced by the library staff and its expansion plans, the management is planning to have a system that would first eradicate the needs of cards; a system to automate the functions of record keeping and report generation; and which could help in executing the different searches in a faster manner. The system to handle the financial details.

Question 4 (20 Marks)
a) Write down ten questions that a system analyst could ask the user of Noida Public Library System. [10 marks]
b) Suggest five difficulties a system analyst might face when trying to collect information about existing system. [5 marks]
c) Discuss five pieces of requirements that may be needed for a new Noida Public Library System.

Question 5 (20 Marks)
a) Draw a context diagram for Noida Public Library System. [5 marks]
b) Draw a physical data flow diagram and apply decomposition where necessary. [15 marks]

Bit 2112: System Analysis And Design Question Paper

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